meson: enable nativesdk

Currently, we can't build meson into SDKs because we don't autogenerate
the required meson.cross file.

Enable this by using the post-relocate hooks and generating a
meson.cross file based on the SDK environment passed into the
post-relocate hook.

(From OE-Core rev: aabb846b165fec218024a7a57f3c9fdaa2514179)

Signed-off-by: Martin Kelly <mkelly@xevo.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/meta/recipes-devtools/meson/meson/meson-wrapper b/meta/recipes-devtools/meson/meson/meson-wrapper
new file mode 100755
index 0000000000..b2e00da513
--- /dev/null
+++ b/meta/recipes-devtools/meson/meson/meson-wrapper
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+if [ -z "$OECORE_NATIVE_SYSROOT" ]; then
+    echo "OECORE_NATIVE_SYSROOT not set; are you in a Yocto SDK environment?" >&2
+fi
+
+# If these are set to a cross-compile path, meson will get confused and try to
+# use them as native tools. Unset them to prevent this, as all the cross-compile
+# config is already in meson.cross.
+unset CC CXX CPP LD AR NM STRIP
+
+exec "$OECORE_NATIVE_SYSROOT/usr/bin/meson.real" \
+     --cross-file "$OECORE_NATIVE_SYSROOT/usr/share/meson/meson.cross" \
+     "$@"